Liquid dispensing apparatus



Uf States Patent IoUD DISPERSING APfARTUS 11obeff1. 1aoch aBd (11ffSffanvv. 1(fckebefg, Eoff Wayne, Ind., 3ss1gnofS fo (enefa1)eve1opfneBfConfpany, Foff vayne, In(1., 3 pafofefShip A A 23, 1953, Sedal No.350,s93

11 C1aifns. (c1,299o3) T his invention fe1ateS to diSpefSing appafatns,and mofe pafticulafly to liquid dispefSing appafatUs. The appafatnS isespeciaHy USefu1 in diSpefSing inSecticides, hefbicides, and othef toxicfnatefia1S Which afe in a liquid State of afe caffied if1 a liqnidSo1ution bUt n1ay be uSed fo diSpefSe any liquid Whefein it iS desifedto pfovide a ne S fay of Inisto An obiect of the invention iS to pfovideliquid dispefsiflg appafatllS Whefein Selective conffol ovef theqnantity of Iiquid diSpefSed into an aif Stfeafn in a given afno11nt oftiIne is pfovided. znothef obiect of the invention is the pfovision ofadiustable va1ve fneanS in 1iquid dispefS- ing appafatUS Whefein afnetefed afflount of liquid is pef fflitted to f1ow onto a fotatabledistfibntion plate that distfibnteS the 1iquid aS tiny dfopletS into anaif Stfeam if1 Which the 1iquid dfop1etS afe dispefSed aS a fine spfayof ff1iSt. Sti11 anothef obiect is to pfovide a fan and difectiof1 plateaffangefnent fof fnaintaining an aif stfean1 fof picking up anddistfibuting the liquid dfoplets and in Which a11 aif layef of Sheath ismaintained ovef the Sllfface of the difectiof1 n1eInbef that iseffective to pfevent the iJT1pinging of the liquid dfoplets thefeon,vVith the feSf11t that coaleScence of the dfop1etS that iS 11S11allycaused by inlpinging of dfoplets on a fnen1bef is obviated- A fufthefobiect of the invention iS i11 pfoviding liquid dispefSing appafatUShaving a fnetef va1ve, fan and difec tion membef fof pfoviding an aifstfean1, and diStfibntof plate fof tfansfeffing the liquid dischafgedffon1 the valve aS fine dfop1ets into the aif Stfeafn, and ifl vhich a11of the nlefnbefS fotate togethef dufing the opefation of the appafatUS.Still a f11fthef obiect is to pfovide HqUid diSpefSing appafafUS havingthe e1eInentS Set out and i11 vhich the distfibutof plate iSSubstafltially covefed to n1aintain a fe1atively quieScent aif zonethefeabout. Yet a fufthef object iS to pfovido in liquid diSpefSingappafatuS a metefing valve intefpoSed in the 1iql1id oW path ffofn afeSefvoif to a fotatable diStfibutof late; the valve having a stationafyand fflovable poftion with lapped faceS each poftion pfovidiog 1 1owpaSSageS thefe thfongh adapted fo be bfonght into fegistef to contfolthe aff1o11f1t of liquid delivefed fo the distfibutiof I)1ate.Additiona1 objectS and advantageS Wi11 appeaf aS the SpeciHcationpfoceedS.

ALn en1bodifnont of the invention is i111stfated in the accompanyingdfawing, in Which Figufe 1 is a top plan vieW of the dispefsingappafatnS; Fig- 2 is a veffical Sectiona1 vievv paft1y in e1evation andtaken on the lifle 22 of Fig. 1; Fig, 3 is a tfansvefse sectiona1 vieWtaken on the line 33 of Fig. 2; Fig. 4 iS a tfanSvefSe sectional vievvfaken o11 the 1ine 44 of Fig. 2; Fig, 3 iS a pefSpective view of thevalve se1ectof membef; Fig. 6 iS a top p1an vieW of a fflodifiedappafatUS; 1=ig. 7 is a bfoken veftica1 Secfiofla1 viev of the Inodicaontaken on the 1ine 7 7 of Fig. 6; Fig. 8 iS a top plaf1 view of the valveSelectof fneteling p1ate; and Fig. 9 1s a top plan vieW of the va1vep1ate The1iqflid diSpefSifig appafafLIS compSeS a fesefvoff PatenfedJune 4, 1957 21, n10tof aSSembly B, a dispefSing head and a bai1 1),caffied by the lT1otof asSefflb1y B and 1)foviding a hand1e byvvhic11the appafatuS Inay be caffied and that faci1itateS Teadypoftabi1ity.

The fesefvoif A iS fofnled by a casing 10 pfovldlng a chan1bef 11thefein. The bottofn wan of the casing 10 pfovideS a Suppoft fof theappafatus and n1ay be plaoed upon any subStantially hofizonta1 Sufface-An openlng iS pfovided iI1 the caSing 10 and the opening iS eqUippedwith a c1osufe plug 12 that fnay be pfovided vvith an openingthefethfough So that the intefiof of the fesefvoif iS at afn1oSpheficpfeSSUfe. The top va11 of the casing 10 haS aI1 en1afged openingthefethfough and a plate 13 iS feceived upof1 the top wa11 of the caSingand pfovideS 3. cloSufe fof the enlafged opening thefethfough. The plate13 Inay be figidly SecUfed to the caSing 10 by cap ScfevvS 14 and ifdeSifed a sI1itable gasket nlay be intefpoSed befvfeen the plate and thetop vvall of the casing to pfovide a seal thefebetween- Rigidly caffiedby the suppoft plafe 13 iS a mofof ho11Sing 15 that enc1oses an electficnlotof thefein that iS conventional and iS not Shown. The n1otofvvithi11 the hoUSing 15 haS a fotof Suppofted in a beafing 1o caffied bya depending hnb nen1bef 17 figidly secllfed to the plate 13. Any IneanSfof secufing the depending hub 17 to the plate 13 may be employed and ifdeSifed, the hub fnay be foffned integfany With the plateo T he n1otofis equi ed with a honow tnbe of Shaft 18 that iS caffied by the fotof ofthe n1otof and iS fotatively dfiven When the motof is actuated. Theuppef end of the hollow tube of Shaff 18 extendS above the InotofhoUSing 15 and at itS lowef end it coDmUnicates With a buShing ofconnectof fflefnbef 19 caffied ifl the beafing 10 and feceiving adepending pickup tube 20 in the 1owef end thefeof. AI1 onlafged fube 21encloSeS the pickup fube 20 and pfovideS a guafd thefefof. The pickuptube 20 and the guafd tflbe 21 enc1oSif1g the Sane extend dovVn Wafdlyinto the intefiof of the feSefvoif and be1ow the leve1 of the 1iquidcontained thefein.

T11e Uppef end of the hollovv o1otof Shaft 18 is thfeaded extefna11y andthfeaded1y feceives thefeon a buShing 22. The bUShing 22 caffies and hasSecufed thefeto a distfib l1tof plate 23 equipped vvith a plufality ofSpacedapaft vaneS of fan bladeS 24. The distfibutof plate 23 Should befigidly secufed to the buShing 22 and any n1eans to accoInp1iSh such afnounting Inay be en1 loyed. Fof exaInple, the depending hnb poftion 25of the distfibutof plate 23 may be equipped With a oentfa1 opening thefethfoUgh that feceiveS the uppef end of the bushing 22 and the twomembefS may be SWeated togethef. The plate nlen1bef 23 is annulaf afldpfovideS a Sfnooth uppef SI1fface that iS Substantia1ly hofizontal1yofiented. A dish shaped difectof guafd 27, having an upwafdly andoutvvaTdl incli11ed waH oftion 28 and a downvvardl and invvafd1yinclined vva11 poftion 2, is caffied by the diSt ibutof plate 23 and iSSecufed thefoto by p111fality of scfews 30. The difection plate 27 fSeqUipped centfany vvith an en1afged annulaf opening 31 thefethfough thatpfovides a thfoat about the nfofof shaft affd iS op efative vith thevanes 2 to dfavv aif thefethfough and to diSchafge it upvvafdly alongthe inIef Sufface of the difection fnefflbef 27.

The np ef s11fface of the diStfibutof plate 23 fS pfovided vvith anannulaf feceSS 32 that has n1ounted thefein a lowef valve plate 33. Asealing gaSket 34, vhich filay be a fubbef o fing, iS intefpoSedbefvveen the plate 23 and valve plate 33 to pfovide a Sea1thefebetvveen. Opefa tive1y affanged With the 1owef valve plate 33 iS avalve se1ectof fflefflbef 35 having a hofizonta1 WaH poftion 36 equippedvvith a depending annulaf contact n1en1bef 37 that S1idably engageS theUppef Sufface of the va1ve plate 33. A stem 38 is foffned integfa11yWith the hofizonta1 poftion 35 and eXtendS upwafdly thefeffom and iSequipped with a slot 30 that iS adapted fo feceive tho point of a ScfeWdfiveT So that the Selecfo1 IneInbef may be tnfned felative to the vaveplate 33. A globulaf c1oSfe I1eff1bef 40 1-eceiveS fhe uppef end of thesteI]1 38 and has a downWaTdly eXfending central poftion Suppofted Uponthe outer perphefal ouTface of the valve late 33. The n1embeT 40 haSoutWafd1yand downwatdly eXtending vvall poftioos 41 that sobSfantiallyeIlclose of covef the distTibutof plafe 33 While being spaced thereffoInaS at 42 to peTInit the ow of liquid betweon the plate 23 and the WaHpoffionS 41 of the closore. helical SpTing 43 is Inounted abouf theSten1 38 and seatS upon the hofizontal )oTtion 35 of the valve selectof35 and upon the uppef wall of the cloSufe n1e1beT 40 and' nofmany biaSesthe selectoT membef downwafdly and into engageent vith the Uppef Soffaceof fhe lowef valve plate 33. A p1UTality of Studs 44 extend thfoughaHgned boTes wifhin the cloSUTe nlen1bef 40. valve )1afe 33, anddistfibufof Plate 23, and SecUTe an thTee of theSe ITlen1- befstogethef. It iS appafenf that tflo eI1fife head C of the dispefSingapparatuS fofateS Upon actuation of the n1otof.

AS win be Seen best by fefeTence to Fig. 4, the valve pate 33 ispTovided vith thTee spacedapart openingS 45 thefethfough that afeadapfed to feceive the sfudS 44. The plafe 33 is also pTovided vvith aplufality of Lshaped ovv paSSages 45 thefethfough that have ahoTizoota11y extending poffion 47, and a veftical poftion 48 in opencon1n1Unication vZith the hofizontal passage 47 and with the U peTS11Iface of the valve late 33 (Fig. 2). The valve plate 33 and theSelectof n1enlber 35 pfovide thefe befvveen a valve chaInber 49 and theLShaped ovv paS sageS 45 conTII111nicate v/ith the valve chan1ber 40thfoUgh n1eteTing ofi0ceS 50 in the contact poftion 37 of the SelectofInen1bef 35. Control ovef the quantity of liquid Hovving thfough thevalve chan1bef 49 and on fo tho dis tfibutof plate 23 iS pfovided bySelectively fegiStefing the desifed nlefeIing oTi0ceS 50 With theveTtical paSSage poftions 33 and the L-Shaped paSSageS 45. The nletefingaduStInent of the valve SelectoT 35 iS accoInpliShed by Totation of theSelecfof Inembef Within the lifnifS pfo vided by the TecoSSeS betvVeenfhe Upvvafdlyextending abutmentS 51 caTried on the npper SuTface and thehofi- Zontal plate 35 of the Selectof IneTnbef. Stop pin 51o cafed bythe doSure membef 40 coopefates ith the abutnlents 51 and thefebylin1its fhe peTn1iSSible fotation of the Selecfof n1en1ber 35. AS iSSeen in Fig. 3,` the selectol membeT 35 n1ay be pToyided with anadditional SeTieS of nTetefing ofiffces 52 diaInetricany op oSife theInetering ofi0ceS 50. The mefefing ori0ceS 52 afe nof mally inoperativebut may be bTooght into opeTative affangen1ent vifh the oaSSageS 45 byfotating the Selectof ITleII1ber 35 180 degreeS relative to the valveplate 33. Such fotation cannot be accon1plished without diSaSSen1 bHngthe Specic apparatuS iHUStfafed in Fig. Z.

In operation the feSeTvoi1 iS HHed vvith an appfopriate liquid Solutionthat nlay be an insecticide, herbicide, of othef foxic nlate1-ia1 thatiS S[1itable foT fhe paftioIllaf USe fof .Which the appafatUS Will beemployed. T11e Inotor vithin the Inotof housing Will be connected to asuifable source of povver and Upon actuafion of the nofof thfo11gh a.SvVitching arfangeInent of aIly deSiTed foTn1 fhat IIlay be incofpoTatedvvith the n1otof, the Iflotof iS actllated and the dSpefsing head C winbe Totatively dTiven thefeby. 1ofation of the head C vvill cfeate an aifStTean1 that 0oK/S UpvvaTdly about the throat of the Inofof and thro0ghthe centTal opening 31 in the difection n1em bef 27. The air Stfeam Will0ow UpWafdly withi1 the difeotion nleInbef 47 and vvill pfovide a Sheathof layof of ai1 ovef the innef Surface thefeof.

1otatioI1 of the he d C Will alSo ofeate a felatively low p oSsofo 2oneyitf1i1 the s1=,ace pfovidod betWeen the cloSufe IneInbeT 40 and thediStfibllfo1 plate 23 and the atn1osphefic pfesSUfe within the Teservoifwill fofce the liquid thefein upwafdly and thfough the hoHow n1otofShaft 18 and into the valve chaInber 49. FfoIn the valve Chambef 40 theliquid wi11 0ow throUgh the mefefing ofificeS 50 that afe in fegiSferWith fhe LShaped pasSageS 45 iI1 the lovef valve plate 33 and outVvafdlythefefToIf1 and on to the uppef suTface of the diStfibutof plate 23. Theliquid Will travel outWafdly ovef the uppef Sufface of the diSfributorplate 23 aS veTy fine dfopletS of liquid afticIeS and will be thfownontwaTdly ffon1 betvveen the plate 23 and c10Sufe n1en1bef 40 and intothe aif stfean1 fhat iS pfovided about the peIiphefy of the disffiblltofplate 23. The air Stfeam wiH Caffy the 0ne dTopletS U wardly andoUtvvardly whefe fhey W be diStTibuted as a 0ne S fay of miSt by the ailStfeam.

In actnal opefation of the apparatuS the difection plate 27 iS CoveTed011 the inner Suffaoo thefeofby a layef of mm of ail and the tiny liquiddfoplets diSchafged ffon1the diSfIibotof plate 23 do not iInpinge Hponthe diTection plate of guafd 27. but are caffied upvvafdly by the aifStfea n and do not contact the difection plate. The difec tion n1en1ber27 fenlains dfy dufing the opeTafion of the appaTatuS and thefe is nowaStage of the liquid thTough collection of the 1iquidthefeon.SiInilarly since the liquid particles do nof iIn inge u on the difectionplate 27 thefeiS no coaleScence of fhe liqI1id parficleS due to anyiI11ping ing action. ThiS fesult is not achieved if the difection-ITlefI1bo1 27 is not in1perforate and it is then desiTablB to provide adifection plate that iS inlperfofate thronghont itS enfffe afea.

- Many of fhe insecticideS, etc. 11sed in dispefsing appaa fuS are quitoexponsive and it iS thefefofe doSifable to diSpefSeonIy the anloUnt ofliquid that iS neceSSaTy to acoon1plish a given feSI11t. I/feteIingvalve IneanS is )fovided thefefoTe So fhat the aInount of liquidfeaching tho distTiblltof plate 23 fn ay be accufately contfo]led. ThisTeS11lt is achieved by pfoviding a plI1fality of fnetefing oIificeS 50that vary in size. Thefefofe, by bfinging Selectively the Tequifedofifices 50 into coIT1Inl1nication With the L Shaped assageS 45 onlyflle amoUt of liquid that Can 1 low thfough tho selected ofifice vill bedelivefed to the diSffibutof plato. To pefmit feady adioStment of theofificeS it is pTefeffed that the uppef SI1fface of tho Seleotor Sten130 be equipped vvith an affovv o1 poinfef aS iS indicated in 1=ig. 1 andappfopfiate indioia nay be Stamped upon the upper Sufface of the cloSufen1elnbef 40 and aligning the affovV With the pTopef InaTking I1pon thecloSuTo fnen1ber Will pfovide the desifed ow rate. Appropfiately then1afldngS upon the closure membef Inay be calibfated in ounceS of 0ow byunit of tiIne, Such aS nlinllteS, hoUTs, etc.

It is apparent by refeffing to Fig. 2 that the olosufe IT1eII1bef 40covefS Substantiany the entife upper snfface of the diStfibutof plate23. ThiS offangement TeSUltS i1 a Telatively quief Zo1e of ai1 about thediStIibutof p15te and there iS littlo tendency then toW aTd tUTbulenceand coaleScene of the tiny liquid pafticleS vvin not be oansed by airturbulenoe.

In the Inodification illllsfrafed in FigS. 5 thTongh 9, the appaTatus iSS11bstanfially the saIne as that hefetofofe deScribed. T1e Speci5cn1eteTing valve aITangeolent, hoW evef, haS been n1odiod slightly andi1cl11des a lovyof valve plate 55 thfeadedly carfied on the UppeT end ofthe hollow Inoto1 Shaft 18. T'he valve plafe 55 is eqHipped xvith aveI1ical ffow laSSage 55 thefethfough that con1- Inunicates through anoutlet poff 57 vvith the up eT Sufface selecto1 poftion 50 and a loweTplate poftion 51 having and outWardly in the 1)ath of ffavel of Saiddfop1efs and adiuStable valve nleanS fo1 ITlefeIiI1g the fiowof liquidfron1 Said feServoif fo Said distTibufo1' Toembe con1pfiS- ing ovaIvemombeT cTfied by said distIibutof membeT and being provided vvith atleaSt one ow passage thefeil1 con1 nTunicating With the distIibutionSUrface of said diStTibutor nlen1ber, and a valve Selecfof nlen1beThaving a )1UTa1ity of spaced-apaTt meteTing ofices interposed in thepath of fiow of liquid fTom said reServoil to Said distributor n1emberand being adapted to registeT With each of said oW pasSages, SaidSelector membef being Tofatable Telative fo said valve n1en1ber andSlidably nlounted thefeon, said selectof membef being eqI1ipped vvithmeanS to Tofate fhe Same Telative to said valve membeT to selectivelyregiste1 Said oTificeS and each of the How paSSageS 9. The structuTe ofclaiIn 7 in vvhich Said valve lneInbef iS equi ped With a plufaHty of oWpasSageS extend ing TadiaHy outvvaTdly towafd fhe peTiphery of the member and in spaced-apart TelatioI1, each of Said ov 1)aS- SagescoInInUnicatig at the outIet end thereof vith the diStribntion Surfaceof said diStributor n1ember and at the other end thereof Vvith fhe nppeTSurface of the valve membor, Said Selecfo1 meInber being equipped With apluIaHty of ofificeS that coInInunioate With the face thereof thatSHdably engages Said valve n1en1bef 10. 1e stTucfnre of clailT1 in WhichSaid valve plate iS equipped wifh a single L-Shaped fiow pasSage communicating at one end vvith the distribI1tion Sufface of Said diS tliblltofmembeT and at the othe1 end with the pper Sur face of the .valve late,said SelectoT IneIT1ber being equip ed with a pluraHty of Spacedapaftofices of dif ferent cTosSSectiona1 area adapted to conn1U1icate at oneend With said LShaped ovv paSSage, and rotation of said SelectoI menlbeTiS adapted to provido selective TegisfTation of said orificeS vvith SaidLShaped fiovv paS- sage.

11- In apparafuS fo1 disperSing 1iqudS, a TeServoff fo1^ the 1iqidS adiStfibufof en1bef equipped with a plu- Tality of fan bladeS a diTectionmember caTTied by Said diStribufof nlen1ber and arfanged With Sid bladeSfo1 providing an ai1 streaIT1 aboI1t Said diStributoT n1e1ber, a cloSufenlen1ber SUbstanfially enclosing the disfribllfion Surface of saiddistributoT membeT and pfoviding a cham be1 theTeabove, ITleanS forrofating Said diStribI1foT nen1- beT upon acttlatioI1 of Said apparatus,nleanS foT pTovid ing a How of liquid ffom Said TeServoir to saiddiSfTibutor nleD1beT When Said ap afatUS is in operation, and adjuSfablevalve IneanS fo1 Inefering the fiovv of liq11id ffoII1 Said TeSeTvoir toSaid diStTibuto1 member compTising a valve Inen1ber pfovided with atleaSt one ovv paSSage therein con1n1Uoicating vvith Said distributoTIneII1beT, and a vave Selector n1en1ber having a plufality ofSpacedapaTf IneteTing oTifices inferposed in the path of fiow of liquidffom Said TeServoif to said diStTibutof member and adapted fo TegiSteTWith each of Said 0w paSSageS, Said selecfor member being movablerelative fo said valve Inen1bef to pfovide selective regiSfration of theofificeS and each of the oW paSSages,

efereceS Cifed in the e of this patent UNITED STATES PATENTS L8lS 9Sl MSIuly 28 1931 Z,483,719 AndefSon oct. 4, 1949 2 SlS 665 Piepel IUly 18,19S0 Z,607 S71 HeSSion AUg. 19 19SZ Z,607 574 HeSSion Aug, 19, 1952 Z671 S Iauch et al. Maf. 9 1954

